<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="test"></div>
    <script src="../lib/react.development.js"></script>
    <!-- //引入核心库 -->
    <script src="../lib//react-dom.development.js"></script>
    <!-- //支持react的dom操作 -->
    <script src="../lib/babel.min.js"></script>
    <script type="text/babel">
        class MyComponent extends React.Component {
            state = {
                username: '',
                password: ''
            }
            saveFormData = (dataType,evnt) => {
                console.log(`你输入的是${dataType}`)
                    console.log(`你的${dataType}为:${evnt}`)
                    this.setState({[dataType]:evnt})
                }
            submit = (event) => {
                event.preventDefault()
                const { username, password } = this
            }
            render() {
                return (
                    <form onSubmit={this.submit}>
                        {
                            // 直接内敛一个返回函数:然后再去调用并传递多个参数
                        }
                        <input type="text" placeholder="请输入内容" name="username" onChange={(evnt)=>{this.saveFormData('username',evnt.target.value)}} />
                        <input type="text" placeholder="请输入内容" name="password" onChange={(evnt)=>{this.saveFormData('password',evnt.target.value)}} />
                    </form>
                )
            }
        }
        ReactDOM.render(<MyComponent/>, document.getElementById('test'))
    </script>
</body>

</html>